Treating passwordless as a straight MFA license replacement understates both the investment and the return.
For a 500–3,000-employee bank, the MFA invoice can hide recurring costs. These include password resets, OTP delivery, token replacement, exception workflows, duplicate identity tooling, and fraud-driven support activity.
Those costs persist without proper legacy integration, recovery, and audit controls.
Passwordless can reduce MFA cost for mid-market bank CIOs only when the ROI model includes all operating costs. Include help-desk resets, OTP operations, token replacement, duplicate licenses, fraud exposure, and legacy integration.
A 60–90 day pilot should baseline per-user authentication cost. Then measure phishing-resistant FIDO2/passkeys against push MFA by application wave, user group, and audit requirement.
Where bank authentication costs really accumulate
For a United States bank with 500–3,000 employees, major avoidable costs often sit outside the MFA invoice. These costs include password resets, SMS or voice OTP, support handling, exception approvals, and overlapping tools.
A license-only business case will understate both savings and migration expense.
The most frequent error is treating passwordless authentication as an MFA replacement project. It should be an operating-cost reduction program.
The MFA-replacement framing makes finance compare one subscription against another. Service desk, fraud, endpoint, and infrastructure teams then keep the same workload.
In New York and other regulated U.S. banking markets, this distinction has practical weight. Institutions under 23 NYCRR Part 500 must document access controls and risk decisions.
FFIEC examination expectations expose weak recovery and exception governance. This remains true when the login flow looks modern.
Build the baseline beyond license spend
Start with a 60–90 day baseline from identity-provider logs, service-desk tickets, telecom invoices, procurement records, and fraud operations. Reconcile results by employee cohort.
Branch staff, remote employees, administrators, contractors, call-center teams, and third-party support personnel have different recovery patterns.
A defensible baseline includes recurring and operating costs that can reasonably change after rollout.
- MFA subscriptions: Annual workforce MFA, adaptive authentication, SSO, and privileged-access add-ons. Account for committed contract periods.
- Password operations: Reset tickets, unlocks, verification calls, and supervisor-approved emergency resets.
- OTP delivery: SMS, voice, and carrier charges, including failed or repeated message attempts.
- Authenticator lifecycle: Hardware-key purchase, shipping, loss replacement, inventory, and revocation work.
- Support labor: Average handling time multiplied by fully loaded service-desk labor cost. Do not use base wage alone.
- Productivity loss: Employee minutes lost to locked accounts, inaccessible VPN, VDI failures, and repeated prompts.
- Fraud operations: Investigation of suspicious pushes, credential-stuffing alerts, account-takeover indicators, and emergency bypasses.
- Duplicate tooling: Overlapping identity, VPN, device certificate, and access-policy products that cannot yet be retired.
A password reset lasting 12 minutes is not simply a 12-minute ticket. It may require caller verification, manager approval, user wait time, and security review.
At a bank with blended support costs between $35 and $65 per hour, reset volume matters greatly. A small MFA price change often matters less.
Find costs outside the IAM budget
Authentication cost is often spread across four or more cost centers. Security may own MFA licensing, while IT operations owns support.
Digital banking may pay for fraud tooling. Telecom may absorb SMS fees.
The CFO will not accept savings claimed twice. Nor will the CFO accept costs omitted because another department owns them.
A common bank case is straightforward. A 1,000-employee institution buys push MFA through one contract and SSO through another.
It maintains VPN tokens for remote access. It also pays for SMS fallback from a separate telecom account.
The bank then deploys passkeys but keeps old products for every legacy application. The result is better authentication for some users but no immediate total-cost reduction.
This approach can work well in theory, but contract commitments can prevent real savings. A technically unnecessary tool may remain financially committed until renewal.
Create a contract map for each identity-related product. Show the owner, end date, minimum commitment, dependent applications, and retirement condition.
Measure push-MFA exception work
Push MFA is multi-factor authentication. It is not inherently phishing-resistant authentication.
Approval fatigue, device changes, repeated prompts, and adversary-in-the-middle attacks create costs absent from standard license reports.
Track denied pushes, repeated prompts within five minutes, help-desk escalations, bypass requests, and reported suspicious approvals. These signals do not prove fraud alone.
They do quantify the operating burden that passkeys or hardware security keys may reduce.
A useful finance rule: Count a cost as avoidable only when an accountable owner identifies the control, contract, process, or labor activity that will end. Count everything else as retained cost until the pilot proves otherwise.
The baseline is the first control. The next section turns it into a bank-specific return model.
Build a 500–3,000 employee ROI model
A bank-specific ROI model should calculate annual avoidable operating cost minus recurring passwordless cost. It should also show one-time migration cost, payback months, and three-year total cost of ownership.
Use low, expected, and high cases for 500, 1,000, and 3,000 employees. Do not use one untested savings percentage.
The key distinction is simple. Avoidable operating cost is recurring expense that will stop or materially decline.
Migration cost covers discovery, integration, enrollment, recovery redesign, training, testing, and audit work. These activities change the control.
Blending these categories makes payback look faster than it is.
For board review, assumptions should trace to a system of record. Ticket data should come from the service desk.
OTP cost should come from invoices. License cost should come from contracts.
Authentication completion data should come from the identity provider or application logs.
The following formula avoids presenting gross savings as ROI.
Annual net benefit = avoided MFA and OTP cost + avoided reset and support cost + verified capacity gain + retired duplicate-tool cost + reduced fraud-response cost − new recurring passwordless cost.
First-year ROI = (annual net benefit − one-time migration cost) ÷ one-time migration cost × 100.
Payback months = one-time migration cost ÷ monthly net benefit.
Do not convert all saved employee minutes into cash savings. A 10-minute reduction is valid only when it reduces overtime, contractor hours, headcount growth, or another measurable capacity commitment.
Otherwise, present it as recovered capacity. Do not present it as hard-dollar savings.
The model should include a conservative fraud-response range. Do not claim that passkeys eliminate account takeover.
Passkeys can reduce phishing and reusable-credential exposure. Compromised endpoints, recovery abuse, and session theft remain relevant threats.
Model three institution sizes
The economics change with scale. Platform minimums and integration costs weigh more heavily at 500 employees.
Support volume, SMS use, and duplicate tools often strengthen the case at 3,000 employees.
| Model input | 500 employees | 1,000 employees | 3,000 employees |
|---|
| Baseline period | 60–90 days | 60–90 days | 60–90 days |
| Likely ROI constraint | Platform minimums and fixed integration work | Contract overlap and application coverage | Legacy exceptions and support process scale |
| Hard-dollar savings sources | Resets, OTP, limited token reduction | Resets, OTP, tool retirement | Resets, OTP, support capacity, tool retirement |
| Recommended financial view | Three-year TCO with conservative payback | Contract-timed retirement plan | Wave-level benefits and exception reserve |
| Sensitivity test | 25–50% lower reset reduction | Delayed license retirement by 12 months | 10–20% applications retained on legacy MFA |
These are scenario structures, not universal bank benchmarks. Populate them with your own ticket rates, carrier pricing, renewal dates, and labor assumptions.
That distinction protects the business case from false precision.
Challenge assumptions before approval
Finance should challenge every assumed retired license, productivity gain, or fraud saving. A license is not eliminated until contract terms, application dependencies, and compensating controls allow retirement.
A user enrolled in passkeys is not proof that the old factor is unnecessary.
The error most often found here is assuming enrollment equals adoption. Measure completed passwordless authentications, not only registered credentials.
A user may enroll a passkey but still choose push MFA. A device, browser, VDI client, or application policy may block the new method.
How a bank turns authentication data into ROI
1. Baseline
60–90 days of resets, OTP, tickets, failures, and licenses.
2. Segment
Separate workforce SaaS, privileged users, VPN/VDI, and legacy access.
3. Pilot
Measure completed logins, recovery, exceptions, and support demand.
4. Retire
Remove costs only after controls and contracts allow retirement.
For a mid-market bank, fund a contained 60–90 day pilot when baseline data shows reset, OTP, or duplicate-tool costs. Do not promise broad savings before verifying completed authentications, recovery outcomes, and contract retirement conditions.
The exception is a bank with unresolved identity inventory or shared-account governance. It should first stabilize IAM and target a narrow phishing-resistant use case.
With the economics defined, architecture becomes the next decision. The authentication method determines which costs fall and which controls appear.
Before buying another authentication platform, map existing capabilities across Microsoft Entra ID, endpoint management, PKI, SSO, PAM, and IAM. Many mid-market banks already license conditional access, device compliance signals, certificate services, or FIDO2 passkey support.
They may not have enabled these controls consistently across workforce applications.
The financial comparison should separate configuration and integration work from net-new licensing. For example, Entra ID may already support passkeys for federated SaaS applications.
In that case, incremental cost may cover enrollment, recovery design, and device readiness. It may not require a second MFA subscription.
Reusing existing controls can reduce duplicate identity tooling. This works only when logging, policy enforcement, support ownership, and audit evidence meet banking access-control requirements.
At the end of a 60–90 day pilot, calculate passwordless authentication ROI with a pre-approved scorecard. Do not use enrollment totals.
Compare the pilot group with its own baseline. Measure completed passwordless logins, password reset costs, OTP delivery costs, and SMS authentication fees.
Also measure help desk support costs, recovery completion time, hardware token replacement, push-MFA prompts, and exception rates. Report each measure per active user and per 1,000 authentication events.
This lets a 500-person bank compare results with a 3,000-person institution. It also avoids masking scale effects.
A pilot should advance only when phishing-resistant login completion is stable. Recovery workflows must meet the bank's service target.
No material audit-control gap may remain. A named owner must confirm which license, process, or tool cost can be retired.
Match authentication to risk and legacy fit
A mid-market bank should use a tiered authentication architecture. Use FIDO2 passkeys for modern workforce and privileged access.
Use certificates where managed-device or VDI constraints apply. Use hardware keys for high-risk and recovery-sensitive roles.
Use compensating controls for non-modern systems. No single method fits SaaS, VPN, SWIFT, core banking, and vendor portals equally well.
FIDO2 and WebAuthn use public-key cryptography. They bind a credential to a legitimate relying party and help resist phishing.
A passkey may be device-bound or synchronized. Policy and platform support determine that choice.
These lifecycle choices affect recovery, audit evidence, and risk acceptance.
The common advice to replace MFA with passkeys everywhere is incomplete for banks. Passwordless is an authentication outcome, not one protocol or product.
A wire-operations workstation, managed VDI session, and old thick-client application may need different authenticators. They may also need different controls.
Compare total cost, not factor price
| Method | Phishing resistance | Primary cost drivers | Recovery burden | Legacy compatibility |
|---|
| Passwords plus SMS/OTP MFA | Low to moderate | OTP volume, resets, fraud response | High | High |
| Push MFA | Moderate, not phishing-resistant by default | Licenses, prompt exceptions, support | Moderate | High |
| FIDO2/WebAuthn passkeys | High when correctly implemented | Integration, enrollment, device lifecycle | Moderate to high | Moderate |
| Certificate-based authentication | High on managed devices | PKI, issuance, renewal, endpoint management | Moderate | Moderate to high |
| Hardware security keys | High | Purchase, distribution, replacement | Moderate | Moderate |
Biometrics need careful treatment. A fingerprint or face scan usually unlocks a cryptographic credential on a device.
It should not be described as the entire authentication control.
The audit record should identify the registered authenticator, relying party, assurance policy, and event outcome. It should not store biometric data.
Prioritize high-risk access first
Prioritize FIDO2 passkeys or hardware security keys for administrators, payment authority roles, wire operations, security personnel, and sensitive customer-data users. This aligns cost reduction with account-takeover prevention.
It also limits the blast radius of weak recovery processes.
The National Institute of Standards and Technology identifies phishing-resistant cryptographic authentication as a key capability in NIST SP 800-63 Digital Identity Guidelines. NIST guidance informs architecture, but banks must document their own risk decisions.
Banks must also document compensating controls and authentication assurance requirements.
For workforce SaaS, Microsoft Entra ID may support passkeys for federated applications.
Related sources
These articles can help you explore the topic in more depth:
Frequently Asked Questions
Is passwordless authentication cheaper than MFA for mid-market banks?
It can be, but not when calculated only as a replacement for an MFA license. A bank should compare the fully loaded cost of authentication: password-reset tickets, SMS or voice OTP delivery, hardware-token replacement, recovery workflows, help-desk time, duplicate identity tools, fraud-related support, and integration work. Passwordless produces the strongest ROI when it retires or materially reduces those recurring costs.
How should a bank measure passwordless ROI before a full rollout?
Start with a 60–90 day pilot and establish a baseline by application, user group, and authentication method. Track cost per authenticated user, password-reset volume, OTP usage, recovery events, help-desk handling time, token replacements, failed-login rates, and phishing-related incidents. Compare FIDO2 security keys or passkeys with push MFA rather than using an organization-wide average.
Do passkeys eliminate the need for MFA in a bank?
Not necessarily. Phishing-resistant passkeys based on FIDO2 can satisfy strong authentication requirements for many use cases, but banks still need risk-based controls for account recovery, privileged access, high-risk transactions, shared or unmanaged devices, and legacy applications. The design should align with internal audit expectations and applicable guidance, including FFIEC principles and New York’s 23 NYCRR Part 500 where relevant.
What costs remain after deploying passwordless authentication?
Passwordless does not automatically remove operational costs. Banks may still incur costs for identity proofing, device enrollment, lost-device recovery, legacy application integration, privileged-access controls, audit logging, and user support. ROI improves when the deployment plan includes retiring redundant MFA tools, reducing OTP dependence, and simplifying recovery processes without weakening security.
Authentication Cost Comparison for Mid-Market Banks
| Cost area |
Push MFA / OTP model |
Passwordless with FIDO2 or passkeys |
ROI consideration |
| Password resets and login support |
Frequent resets, lockouts, and help-desk tickets can create recurring labor costs |
Reduced reliance on passwords can lower reset and lockout volume |
Measure tickets and average handling time per user |
| OTP delivery and token lifecycle |
Ongoing SMS, voice, push, and hardware-token replacement costs |
Lower OTP use; may require security keys for selected populations |
Include delivery fees, token loss, replacement, and shipping |
| Account recovery |
Often dependent on knowledge-based checks, help desk, or temporary bypasses |
Requires secure device recovery, identity proofing, and exception controls |
Do not treat recovery design as a zero-cost feature |
| Legacy and duplicate tooling |
Multiple MFA, SSO, VPN, and identity products may remain in place |
Savings depend on retiring redundant tools after migration |
Count actual decommissioned licenses, not projected replacements |
